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Ships within 48 hours · Estimated delivery Sep 14 - Sep 19
and has a fixed focus lens onboard
Bearing Type: Ball Bearing x 2
4 ms Guard interval
may cause short circuit if it does
RC522 SPI 13.56MHz RFID Reader/Writer passive buzzer and has a fixed focusRC522 is a highly integrated RFID card reader which works on non contact 13. 56MHz communication. Designed by NXP, as a low power consumption, low cost and compact size read and write chip, it is the best choice in the development of smart meters and portable hand held devices. NFC (Near Field Communications) is a way for two devices very close to each other to communicate. Sort of like a very short range bluetooth that doesn't require authentication.
